One of the more exciting advances in interventional medicine is the use of Musculoskeletal Ultrasound to help guide injections such as steroid injections, and PRP. The ultrasound machine is first used to identify the injury, then the needle is introduced under the guidance of the ultrasound, helping to maximize precision. Ultrasound guidance can make it possible to inject structures that otherwise would not be attempted, and also can improve the effectiveness and safety of many injections by helping pinpoint the injured structure as well as helping to steer clear of adjacent structures that should be avoided.